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Note 6 - Inventory
 3 Months Ended
Feb. 29, 2020
Notes to Financial Statements  
Inventory Disclosure [Text Block]
 
6
)
Inventory
 
Major classes of inventory are:
 
   
February 2
9
, 20
20
    
November 30, 2019
  
Raw materials
   $
7,576,968
     $
7,156,001
  
Work in process
    
332,668
      
492,125
  
Finished goods
    
4,042,034
      
3,905,373
  
Gross inventory
   $
11,951,670
     $
11,553,499
  
                 
Less: Reserves
    
(2,637,241
 )    
(2,774,992
 )
Net Inventory
   $
9,314,429
     $
8,778,507